Delta (Beta)

• Fixed not unlocking Experimental Features
• Fixed misc. visual bugs on iOS 18

• Fixed occasionally dropping DS touch screen inputs
• Fixed crash loading certain skins with fallback traits
• Fixed crash loading certain iPhone skins on iPad
• Fixed app freezing when AirPlaying
• Fixed app freezing when rotating device with certain skins

NEW
• Supports using iPhone skins on iPad
• Updated app icon to new logo

FIXED
• Fixed rare crash when loading DS save states
• Fixed game controllers not working on visionOS and macOS
• Fixed hardware keyboard support on macOS
• Fixed menu button not working on external controllers with remapped menu button
• Fixed delayed inputs on external controllers with remapped menu button
• Fixed DS touch screen not responding after updating to iPad version

NEW

Handoff Support
• Seamlessly switch between iPhone and iPad
• Continues playing exactly where you left off
• Supports Delta on Apple Silicon Macs via Mac App Store

Save States
• View all incompatible screenshots on a separate screen
• Export save states to import into other emulators
• Supports sorting by name

Misc.
• Supports Game Mode on iOS 18+
• "Open New Window" option by long-pressing "Main Menu"/"Close" on pause screen

IMPROVED

Quick Gestures
• Added new gestures for Quick Save/Load
• Quick Save = Double-tap
• Quick Load = Long-press

Controller Skins
• Finalizes iPad controller skin designs
• UI to choose different Split View/Stage Manager skins
• Increased DS screen size for default edge-to-edge iPhone landscape skin

Experimental Features
• UI to choose AirPlay skins
• "Skin Debugging" to toggle "debug mode" for skins

FIXED

iPad
• Fixed not recognizing quick gestures on Split View controller
• Fixed crash when pressing "Reset Controller Skin" button
• Fixed crash opening N64 games in new window with context previews enabled
• Fixed sometimes showing incorrect skin orientation in split view
• Fixed loading wrong game after quitting game in another window
• Fixed potential freeze when opening games in new window

⚠️ This update is incompatible with existing DS save states. Please save normally in-game before updating.

NEW

Multiple Windows
• Supports multiple windows on iPad
• Emulate games from multiple systems simultaneously 
• Open new windows via drag & drop, or by long-pressing game then choosing "Open in New Window"
• Automatically pause games when switching windows (optional)

Updated melonDS core to 0.9.5
• Improves game compatibility & performance
• BIOS files are now optional!
• Supports "inserting" GBA games into DS dual-slot
• Increased fast forward speed to 3x (A15 processor or later)

“Support External Displays” Setting
• Control whether Delta shows games full screen on external displays
• Disable to use multiple windows on external display with Stage Manager

FIXED
• Fixed clipped context menu preview for games
• Fixed exporting save file without file extension
• Fixed interface rotating when playing WarioWare: Twisted!
• [iPad] Fixed not adjusting DS screens for split view keyboard
• [iPad] Fixed hidden save state thumbnails when in compact size class

Quick Gestures
• Hold menu button to perform actions via gestures
• Fast Forward: Swipe left or right
• Hold Button: Tap buttons to hold/release

• Fixed issue where Delta could accidentally overwrite local data with old remote data
• Fixed incorrectly marking some game saves as conflicted during initial sync
• Fixed accidentally signing-out after signing-in to previous Google Drive account

IMPROVED

Delta Sync
• Added detailed logging to help debug issues
• View complete error log via "Export Error Log" option in Settings

Misc.
• Shows AirPlay icon when AirPlaying
• Added "Learn More" links to FAQ thoughout app

FIXED

iPad
• Fixed crash when changing DS emulator core
• Fixed incorrectly indented rows on MelonDS core settings screen
• Fixed not rounding last visible row in MelonDS core settings

⚠️ This beta fixes a critical bug that could cause corrupted save files and save states to be uploaded to Google Drive/Dropbox.

Please update ASAP to ensure you don't lose any data. You can read more about this bug fix in today's Patreon post.

IMPROVED

Delta Sync
• Automatically resolves cheat + controller skin sync conflicts
• Syncs game save hash between devices to prevent redundant uploads
• Displays activity indicator when signing in
• Delays seeding sync database until initial sync
• Uses local modification date when uploading changes
• Signs out from previous service when switching services
• Improved error message when remote storage is out of free space (Dropbox only)

Settings
• Revised UI to use modern "inset grouped" style
• Uses large titles where appropriate

Misc.
• Replaces `UIDocumentBrowserViewController` with `UIDocumentPickerViewController` on iOS 17+
• Skips checksum verification when importing zipped games

FIXED

Delta Sync
• Fixed incorrect mass conflicts when signing out then back in
• Fixed “Harmony.sqlite couldn’t be opened” sync error when there are more than 1000 games
• Fixed “file does not exist” sync error after restoring previous version
• Fixed Delta Sync switch remaining OFF if users cancels "Disable Syncing?" warning alert
• Fixed missing references to remote files when signing out then back in
• Fixed queued syncs sometimes fetching outdated changes
• Fixed accidentally using wrong account when signed-in to multiple services

iPad
• Fixed crash when resolving Delta Sync merge conflicts
• Fixed crash when disabling Delta Sync or switching services

Experimental Features
• Fixed saving screenshots to Photos with .limited authorization
• Fixed saving screenshots to Photos as JPEGs

Misc.
• Fixed accidentally deleting Games directory during sync in rare circumstances
• Fixed crash loading save states on iOS 17
• Fixed displaying system name in dark text when remapping inputs on iOS 17

NEW

AirPlay Support 
• Stream your games to the big screen with AirPlay
• [DS] Optionally AirPlay just top screen for true multi-screen experience

Experimental Features
• New section in Settings for features by third-party contributors
• Features are WIP and should be used at user’s discretion

Initial Experimental Features
• Show Status Bar: View time/WiFi/battery while playing a game (@LitRitt)
• Game Screenshots: Take screenshots from pause menu (@LitRitt)
• In-Game Notifications: Show pop-up alerts when performing certain actions (@LitRitt)
• AirPlay Skins: Customize appearance of games on TV when AirPlaying
• Variable Fast Forward: Change the Fast Forward speed per-system

FIXED
• Fixed translucent controller skins resetting opacity after rotating device
• Fixed incorrect thumbstick size after rotating device

Local Multiplayer (thanks Ian Clawson @ThatClawsonBoy!)
• Play NES, SNES, N64, and Genesis games with friends
• Supports up to 4 players

Improved Non-MFi Controller Support
• New default mappings for single Joy-Cons and Switch NES/SNES controllers
• Uses Logo/Home button as Delta pause button if possible

"Contributors" screen
• See everyone who has contributed to Delta
• View associated Pull Requests for contributed features

PREVIOUS BETA
• “Respect Silent Mode” setting
• Automatically mutes game audio if another app is playing audio
• Browse CheatBase for all known cheats for games (thanks Noah Keck @horn978)

“Respect Silent Mode” setting
• When enabled, game audio will only play when your device isn’t muted
• Automatically mutes game audio if another app is playing audio

CheatBase (thanks Noah Keck @horn978)
• Browse and add all known cheats for games
• Limited to DS games for now, but will be expanded in the future

NEW
• Fixed app freezing when using Hold Button feature
• Fixed re-activating held inputs

PREVIOUS BETAS
• Supports Split View and Stage Manager multitasking on iPad
• Optimized full screen-width controller skins when using Split View, Slide Over, or Stage Manager
• Fixed using Xbox controller analog sticks as D-pad inputs
• Fixed remapping analog sticks

• Fixed Split View controller skin covering game screen on iPadOS 16.1
• Fixed Split View controller skin appearing when another controller is active
• Fixed using Xbox controller analog sticks as D-pad inputs
• Fixed remapping analog sticks

PREVIOUS BETA
• Supports Split View and Stage Manager multitasking on iPad
• Automatically pauses + resumes emulation when switching between foreground apps with Stage Manager
• Optimized full screen-width controller skins when using Split View, Slide Over, or Stage Manager
• Supports controller skins with new `placement` parameter
• Supports controller skins with custom screens that don’t have explicit `outputFrame`

NEW
• Supports Split View and Stage Manager multitasking on iPad
• Automatically pauses + resumes emulation when switching between foreground apps with Stage Manager
• Optimized full screen-width controller skins when using Split View, Slide Over, or Stage Manager
• Supports controller skins with new `placement` parameter
• Supports controller skins with custom screens that don’t have explicit `outputFrame`

FIXED
• Fixed not detecting keyboard presses when remapping inputs
• Fixed potential crash rendering game screen after changing EAGLContext
• Fixed incorrect game screen frame when software keyboard appears on iOS 16
• Fixed software keyboard sometimes appearing when not emulating anything

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